Being able to use your card at ATM means that there is nothing wrong with your card itself. You can't swipe your card when you use it in the supermarket. There are two possibilities. First, the supermarket credit card machine is broken, and your card can't be recognized normally. Second, your default daily consumption quota in the bank is too low, which exceeds the amount you spend in the supermarket. First of all, you can swipe your card elsewhere. Two things, you can set yourself in online banking or go to the bank to reset the daily consumption quota.